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-rw-r--r--busybox/networking/wget.c868
1 files changed, 868 insertions, 0 deletions
diff --git a/busybox/networking/wget.c b/busybox/networking/wget.c
new file mode 100644
index 000000000..45acef4d6
--- /dev/null
+++ b/busybox/networking/wget.c
@@ -0,0 +1,868 @@
1/* vi: set sw=4 ts=4: */
2/*
3 * wget - retrieve a file using HTTP or FTP
4 *
5 * Chip Rosenthal Covad Communications <chip@laserlink.net>
6 *
7 */
8
9#include <stdio.h>
10#include <errno.h>
11#include <stdlib.h>
12#include <unistd.h>
13#include <ctype.h>
14#include <string.h>
15#include <unistd.h>
16#include <signal.h>
17#include <sys/ioctl.h>
18
19#include <sys/time.h>
20#include <sys/types.h>
21#include <sys/stat.h>
22#include <sys/socket.h>
23#include <netinet/in.h>
24#include <arpa/inet.h>
25#include <netdb.h>
26
27#ifndef _GNU_SOURCE
28#define _GNU_SOURCE
29#endif
30#include <getopt.h>
31
32#include "busybox.h"
33
34struct host_info {
35 char *host;
36 int port;
37 char *path;
38 int is_ftp;
39 char *user;
40};
41
42static void parse_url(char *url, struct host_info *h);
43static FILE *open_socket(struct sockaddr_in *s_in);
44static char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc);
45static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf);
46
47/* Globals (can be accessed from signal handlers */
48static off_t filesize = 0; /* content-length of the file */
49static int chunked = 0; /* chunked transfer encoding */
50#ifdef CONFIG_FEATURE_WGET_STATUSBAR
51static void progressmeter(int flag);
52static char *curfile; /* Name of current file being transferred. */
53static struct timeval start; /* Time a transfer started. */
54static volatile unsigned long statbytes = 0; /* Number of bytes transferred so far. */
55/* For progressmeter() -- number of seconds before xfer considered "stalled" */
56static const int STALLTIME = 5;
57#endif
58
59static void close_and_delete_outfile(FILE* output, char *fname_out, int do_continue)
60{
61 if (output != stdout && do_continue==0) {
62 fclose(output);
63 unlink(fname_out);
64 }
65}
66
67/* Read NMEMB elements of SIZE bytes into PTR from STREAM. Returns the
68 * number of elements read, and a short count if an eof or non-interrupt
69 * error is encountered. */
70static size_t safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
71{
72 size_t ret = 0;
73
74 do {
75 clearerr(stream);
76 ret += fread((char *)ptr + (ret * size), size, nmemb - ret, stream);
77 } while (ret < nmemb && ferror(stream) && errno == EINTR);
78
79 return ret;
80}
81
82/* Write NMEMB elements of SIZE bytes from PTR to STREAM. Returns the
83 * number of elements written, and a short count if an eof or non-interrupt
84 * error is encountered. */
85static size_t safe_fwrite(void *ptr, size_t size, size_t nmemb, FILE *stream)
86{
87 size_t ret = 0;
88
89 do {
90 clearerr(stream);
91 ret += fwrite((char *)ptr + (ret * size), size, nmemb - ret, stream);
92 } while (ret < nmemb && ferror(stream) && errno == EINTR);
93
94 return ret;
95}
96
97/* Read a line or SIZE - 1 bytes into S, whichever is less, from STREAM.
98 * Returns S, or NULL if an eof or non-interrupt error is encountered. */
99static char *safe_fgets(char *s, int size, FILE *stream)
100{
101 char *ret;
102
103 do {
104 clearerr(stream);
105 ret = fgets(s, size, stream);
106 } while (ret == NULL && ferror(stream) && errno == EINTR);
107
108 return ret;
109}
110
111#define close_delete_and_die(s...) { \
112 close_and_delete_outfile(output, fname_out, do_continue); \
113 bb_error_msg_and_die(s); }
114
115
116#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
117/*
118 * Base64-encode character string
119 * oops... isn't something similar in uuencode.c?
120 * It would be better to use already existing code
121 */
122char *base64enc(unsigned char *p, char *buf, int len) {
123
124 char al[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
125 "0123456789+/";
126 char *s = buf;
127
128 while(*p) {
129 if (s >= buf+len-4)
130 bb_error_msg_and_die("buffer overflow");
131 *(s++) = al[(*p >> 2) & 0x3F];
132 *(s++) = al[((*p << 4) & 0x30) | ((*(p+1) >> 4) & 0x0F)];
133 *s = *(s+1) = '=';
134 *(s+2) = 0;
135 if (! *(++p)) break;
136 *(s++) = al[((*p << 2) & 0x3C) | ((*(p+1) >> 6) & 0x03)];
137 if (! *(++p)) break;
138 *(s++) = al[*(p++) & 0x3F];
139 }
140
141 return buf;
142}
143#endif
144
145#define WGET_OPT_CONTINUE 1
146#define WGET_OPT_QUIET 2
147#define WGET_OPT_PASSIVE 4
148#define WGET_OPT_OUTNAME 8
149#define WGET_OPT_HEADER 16
150#define WGET_OPT_PREFIX 32
151#define WGET_OPT_PROXY 64
152
153static const struct option wget_long_options[] = {
154 { "continue", 0, NULL, 'c' },
155 { "quiet", 0, NULL, 'q' },
156 { "passive-ftp", 0, NULL, 139 },
157 { "output-document", 1, NULL, 'O' },
158 { "header", 1, NULL, 131 },
159 { "directory-prefix",1, NULL, 'P' },
160 { "proxy", 1, NULL, 'Y' },
161 { 0, 0, 0, 0 }
162};
163
164int wget_main(int argc, char **argv)
165{
166 int n, try=5, status;
167 unsigned long opt;
168 int port;
169 char *proxy = 0;
170 char *dir_prefix=NULL;
171 char *s, buf[512];
172 struct stat sbuf;
173 char extra_headers[1024];
174 char *extra_headers_ptr = extra_headers;
175 int extra_headers_left = sizeof(extra_headers);
176 struct host_info server, target;
177 struct sockaddr_in s_in;
178 llist_t *headers_llist = NULL;
179
180 FILE *sfp = NULL; /* socket to web/ftp server */
181 FILE *dfp = NULL; /* socket to ftp server (data) */
182 char *fname_out = NULL; /* where to direct output (-O) */
183 int do_continue = 0; /* continue a prev transfer (-c) */
184 long beg_range = 0L; /* range at which continue begins */
185 int got_clen = 0; /* got content-length: from server */
186 FILE *output; /* socket to web server */
187 int quiet_flag = FALSE; /* Be verry, verry quiet... */
188 int use_proxy = 1; /* Use proxies if env vars are set */
189 char *proxy_flag = "on"; /* Use proxies if env vars are set */
190
191 /*
192 * Crack command line.
193 */
194 bb_opt_complementaly = "\203*";
195 bb_applet_long_options = wget_long_options;
196 opt = bb_getopt_ulflags(argc, argv, "cq\213O:\203:P:Y:", &fname_out, &headers_llist, &dir_prefix, &proxy_flag);
197 if (opt & WGET_OPT_CONTINUE) {
198 ++do_continue;
199 }
200 if (opt & WGET_OPT_QUIET) {
201 quiet_flag = TRUE;
202 }
203 if (strcmp(proxy_flag, "off") == 0) {
204 /* Use the proxy if necessary. */
205 use_proxy = 0;
206 }
207 if (opt & WGET_OPT_HEADER) {
208 while (headers_llist) {
209 int arglen = strlen(headers_llist->data);
210 if (extra_headers_left - arglen - 2 <= 0)
211 bb_error_msg_and_die("extra_headers buffer too small(need %i)", extra_headers_left - arglen);
212 strcpy(extra_headers_ptr, headers_llist->data);
213 extra_headers_ptr += arglen;
214 extra_headers_left -= ( arglen + 2 );
215 *extra_headers_ptr++ = '\r';
216 *extra_headers_ptr++ = '\n';
217 *(extra_headers_ptr + 1) = 0;
218 headers_llist = headers_llist->link;
219 }
220 }
221 if (argc - optind != 1)
222 bb_show_usage();
223
224 parse_url(argv[optind], &target);
225 server.host = target.host;
226 server.port = target.port;
227
228 /*
229 * Use the proxy if necessary.
230 */
231 if (use_proxy) {
232 proxy = getenv(target.is_ftp ? "ftp_proxy" : "http_proxy");
233 if (proxy && *proxy) {
234 parse_url(bb_xstrdup(proxy), &server);
235 } else {
236 use_proxy = 0;
237 }
238 }
239
240 /* Guess an output filename */
241 if (!fname_out) {
242 // Dirty hack. Needed because bb_get_last_path_component
243 // will destroy trailing / by storing '\0' in last byte!
244 if(target.path[strlen(target.path)-1]!='/') {
245 fname_out =
246#ifdef CONFIG_FEATURE_WGET_STATUSBAR
247 curfile =
248#endif
249 bb_get_last_path_component(target.path);
250 }
251 if (fname_out==NULL || strlen(fname_out)<1) {
252 fname_out =
253#ifdef CONFIG_FEATURE_WGET_STATUSBAR
254 curfile =
255#endif
256 "index.html";
257 }
258 if (dir_prefix != NULL)
259 fname_out = concat_path_file(dir_prefix, fname_out);
260#ifdef CONFIG_FEATURE_WGET_STATUSBAR
261 } else {
262 curfile = bb_get_last_path_component(fname_out);
263#endif
264 }
265 if (do_continue && !fname_out)
266 bb_error_msg_and_die("cannot specify continue (-c) without a filename (-O)");
267
268
269 /*
270 * Open the output file stream.
271 */
272 if (strcmp(fname_out, "-") == 0) {
273 output = stdout;
274 quiet_flag = TRUE;
275 } else {
276 output = bb_xfopen(fname_out, (do_continue ? "a" : "w"));
277 }
278
279 /*
280 * Determine where to start transfer.
281 */
282 if (do_continue) {
283 if (fstat(fileno(output), &sbuf) < 0)
284 bb_perror_msg_and_die("fstat()");
285 if (sbuf.st_size > 0)
286 beg_range = sbuf.st_size;
287 else
288 do_continue = 0;
289 }
290
291 /* We want to do exactly _one_ DNS lookup, since some
292 * sites (i.e. ftp.us.debian.org) use round-robin DNS
293 * and we want to connect to only one IP... */
294 bb_lookup_host(&s_in, server.host);
295 s_in.sin_port = server.port;
296 if (quiet_flag==FALSE) {
297 fprintf(stdout, "Connecting to %s[%s]:%d\n",
298 server.host, inet_ntoa(s_in.sin_addr), ntohs(server.port));
299 }
300
301 if (use_proxy || !target.is_ftp) {
302 /*
303 * HTTP session
304 */
305 do {
306 got_clen = chunked = 0;
307
308 if (! --try)
309 close_delete_and_die("too many redirections");
310
311 /*
312 * Open socket to http server
313 */
314 if (sfp) fclose(sfp);
315 sfp = open_socket(&s_in);
316
317 /*
318 * Send HTTP request.
319 */
320 if (use_proxy) {
321 const char *format = "GET %stp://%s:%d/%s HTTP/1.1\r\n";
322#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
323 if (strchr (target.host, ':'))
324 format = "GET %stp://[%s]:%d/%s HTTP/1.1\r\n";
325#endif
326 fprintf(sfp, format,
327 target.is_ftp ? "f" : "ht", target.host,
328 ntohs(target.port), target.path);
329 } else {
330 fprintf(sfp, "GET /%s HTTP/1.1\r\n", target.path);
331 }
332
333 fprintf(sfp, "Host: %s\r\nUser-Agent: Wget\r\n", target.host);
334
335#ifdef CONFIG_FEATURE_WGET_AUTHENTICATION
336 if (target.user) {
337 fprintf(sfp, "Authorization: Basic %s\r\n",
338 base64enc(target.user, buf, sizeof(buf)));
339 }
340 if (use_proxy && server.user) {
341 fprintf(sfp, "Proxy-Authorization: Basic %s\r\n",
342 base64enc(server.user, buf, sizeof(buf)));
343 }
344#endif
345
346 if (do_continue)
347 fprintf(sfp, "Range: bytes=%ld-\r\n", beg_range);
348 if(extra_headers_left < sizeof(extra_headers))
349 fputs(extra_headers,sfp);
350 fprintf(sfp,"Connection: close\r\n\r\n");
351
352 /*
353 * Retrieve HTTP response line and check for "200" status code.
354 */
355read_response:
356 if (fgets(buf, sizeof(buf), sfp) == NULL)
357 close_delete_and_die("no response from server");
358
359 for (s = buf ; *s != '\0' && !isspace(*s) ; ++s)
360 ;
361 for ( ; isspace(*s) ; ++s)
362 ;
363 switch (status = atoi(s)) {
364 case 0:
365 case 100:
366 while (gethdr(buf, sizeof(buf), sfp, &n) != NULL);
367 goto read_response;
368 case 200:
369 if (do_continue && output != stdout)
370 output = freopen(fname_out, "w", output);
371 do_continue = 0;
372 break;
373 case 300: /* redirection */
374 case 301:
375 case 302:
376 case 303:
377 break;
378 case 206:
379 if (do_continue)
380 break;
381 /*FALLTHRU*/
382 default:
383 chomp(buf);
384 close_delete_and_die("server returned error %d: %s", atoi(s), buf);
385 }
386
387 /*
388 * Retrieve HTTP headers.
389 */
390 while ((s = gethdr(buf, sizeof(buf), sfp, &n)) != NULL) {
391 if (strcasecmp(buf, "content-length") == 0) {
392 unsigned long value;
393 if (safe_strtoul(s, &value)) {
394 close_delete_and_die("content-length %s is garbage", s);
395 }
396 filesize = value;
397 got_clen = 1;
398 continue;
399 }
400 if (strcasecmp(buf, "transfer-encoding") == 0) {
401 if (strcasecmp(s, "chunked") == 0) {
402 chunked = got_clen = 1;
403 } else {
404 close_delete_and_die("server wants to do %s transfer encoding", s);
405 }
406 }
407 if (strcasecmp(buf, "location") == 0) {
408 if (s[0] == '/')
409 target.path = bb_xstrdup(s+1);
410 else {
411 parse_url(bb_xstrdup(s), &target);
412 if (use_proxy == 0) {
413 server.host = target.host;
414 server.port = target.port;
415 }
416 bb_lookup_host(&s_in, server.host);
417 s_in.sin_port = server.port;
418 break;
419 }
420 }
421 }
422 } while(status >= 300);
423
424 dfp = sfp;
425 }
426 else
427 {
428 /*
429 * FTP session
430 */
431 if (! target.user)
432 target.user = bb_xstrdup("anonymous:busybox@");
433
434 sfp = open_socket(&s_in);
435 if (ftpcmd(NULL, NULL, sfp, buf) != 220)
436 close_delete_and_die("%s", buf+4);
437
438 /*
439 * Splitting username:password pair,
440 * trying to log in
441 */
442 s = strchr(target.user, ':');
443 if (s)
444 *(s++) = '\0';
445 switch(ftpcmd("USER ", target.user, sfp, buf)) {
446 case 230:
447 break;
448 case 331:
449 if (ftpcmd("PASS ", s, sfp, buf) == 230)
450 break;
451 /* FALLTHRU (failed login) */
452 default:
453 close_delete_and_die("ftp login: %s", buf+4);
454 }
455
456 ftpcmd("CDUP", NULL, sfp, buf);
457 ftpcmd("TYPE I", NULL, sfp, buf);
458
459 /*
460 * Querying file size
461 */
462 if (ftpcmd("SIZE /", target.path, sfp, buf) == 213) {
463 unsigned long value;
464 if (safe_strtoul(buf+4, &value)) {
465 close_delete_and_die("SIZE value is garbage");
466 }
467 filesize = value;
468 got_clen = 1;
469 }
470
471 /*
472 * Entering passive mode
473 */
474 if (ftpcmd("PASV", NULL, sfp, buf) != 227)
475 close_delete_and_die("PASV: %s", buf+4);
476 s = strrchr(buf, ',');
477 *s = 0;
478 port = atoi(s+1);
479 s = strrchr(buf, ',');
480 port += atoi(s+1) * 256;
481 s_in.sin_port = htons(port);
482 dfp = open_socket(&s_in);
483
484 if (do_continue) {
485 sprintf(buf, "REST %ld", beg_range);
486 if (ftpcmd(buf, NULL, sfp, buf) != 350) {
487 if (output != stdout)
488 output = freopen(fname_out, "w", output);
489 do_continue = 0;
490 } else
491 filesize -= beg_range;
492 }
493
494 if (ftpcmd("RETR /", target.path, sfp, buf) > 150)
495 close_delete_and_die("RETR: %s", buf+4);
496
497 }
498
499
500 /*
501 * Retrieve file
502 */
503 if (chunked) {
504 fgets(buf, sizeof(buf), dfp);
505 filesize = strtol(buf, (char **) NULL, 16);
506 }
507#ifdef CONFIG_FEATURE_WGET_STATUSBAR
508 if (quiet_flag==FALSE)
509 progressmeter(-1);
510#endif
511 do {
512 while ((filesize > 0 || !got_clen) && (n = safe_fread(buf, 1, ((chunked || got_clen) && (filesize < sizeof(buf)) ? filesize : sizeof(buf)), dfp)) > 0) {
513 if (safe_fwrite(buf, 1, n, output) != n) {
514 bb_perror_msg_and_die("write error");
515 }
516#ifdef CONFIG_FEATURE_WGET_STATUSBAR
517 statbytes+=n;
518#endif
519 if (got_clen) {
520 filesize -= n;
521 }
522 }
523
524 if (chunked) {
525 safe_fgets(buf, sizeof(buf), dfp); /* This is a newline */
526 safe_fgets(buf, sizeof(buf), dfp);
527 filesize = strtol(buf, (char **) NULL, 16);
528 if (filesize==0) {
529 chunked = 0; /* all done! */
530 }
531 }
532
533 if (n == 0 && ferror(dfp)) {
534 bb_perror_msg_and_die("network read error");
535 }
536 } while (chunked);
537#ifdef CONFIG_FEATURE_WGET_STATUSBAR
538 if (quiet_flag==FALSE)
539 progressmeter(1);
540#endif
541 if ((use_proxy == 0) && target.is_ftp) {
542 fclose(dfp);
543 if (ftpcmd(NULL, NULL, sfp, buf) != 226)
544 bb_error_msg_and_die("ftp error: %s", buf+4);
545 ftpcmd("QUIT", NULL, sfp, buf);
546 }
547 exit(EXIT_SUCCESS);
548}
549
550
551void parse_url(char *url, struct host_info *h)
552{
553 char *cp, *sp, *up, *pp;
554
555 if (strncmp(url, "http://", 7) == 0) {
556 h->port = bb_lookup_port("http", "tcp", 80);
557 h->host = url + 7;
558 h->is_ftp = 0;
559 } else if (strncmp(url, "ftp://", 6) == 0) {
560 h->port = bb_lookup_port("ftp", "tfp", 21);
561 h->host = url + 6;
562 h->is_ftp = 1;
563 } else
564 bb_error_msg_and_die("not an http or ftp url: %s", url);
565
566 sp = strchr(h->host, '/');
567 if (sp) {
568 *sp++ = '\0';
569 h->path = sp;
570 } else
571 h->path = bb_xstrdup("");
572
573 up = strrchr(h->host, '@');
574 if (up != NULL) {
575 h->user = h->host;
576 *up++ = '\0';
577 h->host = up;
578 } else
579 h->user = NULL;
580
581 pp = h->host;
582
583#ifdef CONFIG_FEATURE_WGET_IP6_LITERAL
584 if (h->host[0] == '[') {
585 char *ep;
586
587 ep = h->host + 1;
588 while (*ep == ':' || isxdigit (*ep))
589 ep++;
590 if (*ep == ']') {
591 h->host++;
592 *ep = '\0';
593 pp = ep + 1;
594 }
595 }
596#endif
597
598 cp = strchr(pp, ':');
599 if (cp != NULL) {
600 *cp++ = '\0';
601 h->port = htons(atoi(cp));
602 }
603}
604
605
606FILE *open_socket(struct sockaddr_in *s_in)
607{
608 FILE *fp;
609
610 fp = fdopen(xconnect(s_in), "r+");
611 if (fp == NULL)
612 bb_perror_msg_and_die("fdopen()");
613
614 return fp;
615}
616
617
618char *gethdr(char *buf, size_t bufsiz, FILE *fp, int *istrunc)
619{
620 char *s, *hdrval;
621 int c;
622
623 *istrunc = 0;
624
625 /* retrieve header line */
626 if (fgets(buf, bufsiz, fp) == NULL)
627 return NULL;
628
629 /* see if we are at the end of the headers */
630 for (s = buf ; *s == '\r' ; ++s)
631 ;
632 if (s[0] == '\n')
633 return NULL;
634
635 /* convert the header name to lower case */
636 for (s = buf ; isalnum(*s) || *s == '-' ; ++s)
637 *s = tolower(*s);
638
639 /* verify we are at the end of the header name */
640 if (*s != ':')
641 bb_error_msg_and_die("bad header line: %s", buf);
642
643 /* locate the start of the header value */
644 for (*s++ = '\0' ; *s == ' ' || *s == '\t' ; ++s)
645 ;
646 hdrval = s;
647
648 /* locate the end of header */
649 while (*s != '\0' && *s != '\r' && *s != '\n')
650 ++s;
651
652 /* end of header found */
653 if (*s != '\0') {
654 *s = '\0';
655 return hdrval;
656 }
657
658 /* Rats! The buffer isn't big enough to hold the entire header value. */
659 while (c = getc(fp), c != EOF && c != '\n')
660 ;
661 *istrunc = 1;
662 return hdrval;
663}
664
665static int ftpcmd(char *s1, char *s2, FILE *fp, char *buf)
666{
667 if (s1) {
668 if (!s2) s2="";
669 fprintf(fp, "%s%s\r\n", s1, s2);
670 fflush(fp);
671 }
672
673 do {
674 char *buf_ptr;
675
676 if (fgets(buf, 510, fp) == NULL) {
677 bb_perror_msg_and_die("fgets()");
678 }
679 buf_ptr = strstr(buf, "\r\n");
680 if (buf_ptr) {
681 *buf_ptr = '\0';
682 }
683 } while (! isdigit(buf[0]) || buf[3] != ' ');
684
685 return atoi(buf);
686}
687
688#ifdef CONFIG_FEATURE_WGET_STATUSBAR
689/* Stuff below is from BSD rcp util.c, as added to openshh.
690 * Original copyright notice is retained at the end of this file.
691 *
692 */
693
694
695static int
696getttywidth(void)
697{
698 int width=0;
699 get_terminal_width_height(0, &width, NULL);
700 return (width);
701}
702
703static void
704updateprogressmeter(int ignore)
705{
706 int save_errno = errno;
707
708 progressmeter(0);
709 errno = save_errno;
710}
711
712static void
713alarmtimer(int wait)
714{
715 struct itimerval itv;
716
717 itv.it_value.tv_sec = wait;
718 itv.it_value.tv_usec = 0;
719 itv.it_interval = itv.it_value;
720 setitimer(ITIMER_REAL, &itv, NULL);
721}
722
723
724static void
725progressmeter(int flag)
726{
727 static const char prefixes[] = " KMGTP";
728 static struct timeval lastupdate;
729 static off_t lastsize, totalsize;
730 struct timeval now, td, wait;
731 off_t cursize, abbrevsize;
732 double elapsed;
733 int ratio, barlength, i, remaining;
734 char buf[256];
735
736 if (flag == -1) {
737 (void) gettimeofday(&start, (struct timezone *) 0);
738 lastupdate = start;
739 lastsize = 0;
740 totalsize = filesize; /* as filesize changes.. */
741 }
742
743 (void) gettimeofday(&now, (struct timezone *) 0);
744 cursize = statbytes;
745 if (totalsize != 0 && !chunked) {
746 ratio = 100.0 * cursize / totalsize;
747 ratio = MAX(ratio, 0);
748 ratio = MIN(ratio, 100);
749 } else
750 ratio = 100;
751
752 snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
753
754 barlength = getttywidth() - 51;
755 if (barlength > 0) {
756 i = barlength * ratio / 100;
757 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
758 "|%.*s%*s|", i,
759 "*****************************************************************************"
760 "*****************************************************************************",
761 barlength - i, "");
762 }
763 i = 0;
764 abbrevsize = cursize;
765 while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
766 i++;
767 abbrevsize >>= 10;
768 }
769 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5d %c%c ",
770 (int) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' :
771 'B');
772
773 timersub(&now, &lastupdate, &wait);
774 if (cursize > lastsize) {
775 lastupdate = now;
776 lastsize = cursize;
777 if (wait.tv_sec >= STALLTIME) {
778 start.tv_sec += wait.tv_sec;
779 start.tv_usec += wait.tv_usec;
780 }
781 wait.tv_sec = 0;
782 }
783 timersub(&now, &start, &td);
784 elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
785
786 if (wait.tv_sec >= STALLTIME) {
787 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
788 " - stalled -");
789 } else if (statbytes <= 0 || elapsed <= 0.0 || cursize > totalsize || chunked) {
790 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
791 " --:-- ETA");
792 } else {
793 remaining = (int) (totalsize / (statbytes / elapsed) - elapsed);
794 i = remaining / 3600;
795 if (i)
796 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
797 "%2d:", i);
798 else
799 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
800 " ");
801 i = remaining % 3600;
802 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
803 "%02d:%02d ETA", i / 60, i % 60);
804 }
805 write(STDERR_FILENO, buf, strlen(buf));
806
807 if (flag == -1) {
808 struct sigaction sa;
809 sa.sa_handler = updateprogressmeter;
810 sigemptyset(&sa.sa_mask);
811 sa.sa_flags = SA_RESTART;
812 sigaction(SIGALRM, &sa, NULL);
813 alarmtimer(1);
814 } else if (flag == 1) {
815 alarmtimer(0);
816 statbytes = 0;
817 putc('\n', stderr);
818 }
819}
820#endif
821
822/* Original copyright notice which applies to the CONFIG_FEATURE_WGET_STATUSBAR stuff,
823 * much of which was blatantly stolen from openssh. */
824
825/*-
826 * Copyright (c) 1992, 1993
827 * The Regents of the University of California. All rights reserved.
828 *
829 * Redistribution and use in source and binary forms, with or without
830 * modification, are permitted provided that the following conditions
831 * are met:
832 * 1. Redistributions of source code must retain the above copyright
833 * notice, this list of conditions and the following disclaimer.
834 * 2. Redistributions in binary form must reproduce the above copyright
835 * notice, this list of conditions and the following disclaimer in the
836 * documentation and/or other materials provided with the distribution.
837 *
838 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
839 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
840 *
841 * 4. Neither the name of the University nor the names of its contributors
842 * may be used to endorse or promote products derived from this software
843 * without specific prior written permission.
844 *
845 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
846 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
847 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
848 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
849 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
850 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
851 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
852 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
853 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
854 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
855 * SUCH DAMAGE.
856 *
857 * $Id: wget.c,v 1.75 2004/10/08 08:27:40 andersen Exp $
858 */
859
860
861
862/*
863Local Variables:
864c-file-style: "linux"
865c-basic-offset: 4
866tab-width: 4
867End:
868*/
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